Since no one else has posted here yet I will put in my 2 cents.
At this time I did not intend to use this device to run the main show. If I had, the 100ms limitation would have been a serious issue since I think everything I have already sequenced is at 50ms. Knowing that in the future I might want to run any sequence from the Panther device I will always use 100ms. I do not think that there is any problem with that increment as far a being to slow for any effect. I do not know if there is a way to change a sequence in Vixen that already exists. If there is an expert out that can tell us how I hope they will speak up.
Bill